This key facts covers Key Rules to Remember within Real-Life Graphs for GCSE Mathematics. Revise Real-Life Graphs in Graphs for GCSE Mathematics with 14 exam-style questions and 12 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 7 of 9 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 7 of 9
Practice
14 questions
Recall
12 flashcards
Key Rules to Remember
- Gradient = rate of change (always read units from axes)
- Horizontal line = no change in y (e.g. stopped, constant temperature, not spending)
- Steeper line = faster rate (larger gradient)
- Straight line = constant rate (uniform speed, fixed price per unit)
- Curved line = changing rate (accelerating/decelerating, or container changing width)
- y-intercept = starting value (e.g. fixed charge, initial temperature, initial distance)
- Origin (0, 0): graph starts at zero (e.g. conversion graph with no fixed charge)